90687280

素因数分解:

$2^4\times 5^1\times {\mathrm{1133591}}^1$

素因数の和:1133604

約数の個数: 20

約数和(自身を含む): 210848112

約数和(自身を除く): 120160832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1133591, 2267182, 4534364, 5667955, 9068728, 11335910, 18137456, 22671820, 45343640, 90687280]

約数ペア:

[(1, 90687280), (2, 45343640), (4, 22671820), (5, 18137456), (8, 11335910), (10, 9068728), (16, 5667955), (20, 4534364), (40, 2267182), (80, 1133591)]